We hereby inform the Investors that the Announcement and release of the 1^st Quarter 2013 Financial Results at the company's website (www.terna-energy.gr) as well as the website of the Athens Exchange (www.ase.gr) will be effected on Tuesday, May 28, 2013,  before the opening of the trading session of ASE and not on Thursday, May 30,2013, as already announced.